Issues with Syncing playlist :(

Hey all im having an issue with Xbox music and its getting really frustrating

So i have an Xbox music pass and have got about 300 songs on my phone i have downloaded from the Xbox music store on my 920. I have created a playlist on the phone and added all of my songs to it hoping that i could view the playlist on Xbox360 but this isn't the case, yet it i create a playlist with song on Xbox360 I can see it on the phone. what gives? is there some trick to the cloud? surely it cant be because i have selected download them phone?

yeah its really starting to take the ****, im sick of searching for the songs on xbl and having create a new playlist and adding them again this is so much xtra work. why is this so hard i mean if i have downloaded 300 songs from xbox music store then shouldnt the collection be global and not localised to the dam phone?